TY - GEN
T1 - Experimental research on mercury emission and its speciation in the flue gas from coal-fired power station
AU - Wu, Jiang
AU - Zhang, Yanyan
AU - Pan, Weiguo
AU - He, Ping
AU - Ren, Jianxing
AU - Shen, Minqiang
AU - Jin, Yun
AU - Du, Yuying
AU - Wang, Peng
AU - Chen, Jiehe
AU - Lu, Ping
AU - Cao, Yan
AU - Pan, Wei Ping
PY - 2009
Y1 - 2009
N2 - Mercury is harmful to our health and environment, so research on mercury emission from coal-fired power station, the main source of anthropogenic mercury emission, is very important. In this paper, mercury emission and speciation in the flue gas from a coal-fired power station was measured by three methods, i.e., OHM (Ontario Hydro method), Hg SCEM (semi-continuous emission monitors), and EPA Appendix K (carbon trap method). The effects of boiler load, flue gas characteristics on mercury emission and its speciation were analyzed. Mercury mass balance was calculated based on the analyses of mercury contents in coal, pyrite, bottom ash, fly ash, FGD (flue gas desulphurization) slurry, and flue gas at FGD inlet and stack. The results indicate that data by the three methods have good consistency within acceptable range. The total mercury emission increases with the increasing of mercury content in fuel and boiler load. The percentages of elemental mercury in the flue gas at FGD inlet and stack are around 26%-48% and 70%-85% respectively. Wet FGD would capture more than 80% of oxidized mercury.
AB - Mercury is harmful to our health and environment, so research on mercury emission from coal-fired power station, the main source of anthropogenic mercury emission, is very important. In this paper, mercury emission and speciation in the flue gas from a coal-fired power station was measured by three methods, i.e., OHM (Ontario Hydro method), Hg SCEM (semi-continuous emission monitors), and EPA Appendix K (carbon trap method). The effects of boiler load, flue gas characteristics on mercury emission and its speciation were analyzed. Mercury mass balance was calculated based on the analyses of mercury contents in coal, pyrite, bottom ash, fly ash, FGD (flue gas desulphurization) slurry, and flue gas at FGD inlet and stack. The results indicate that data by the three methods have good consistency within acceptable range. The total mercury emission increases with the increasing of mercury content in fuel and boiler load. The percentages of elemental mercury in the flue gas at FGD inlet and stack are around 26%-48% and 70%-85% respectively. Wet FGD would capture more than 80% of oxidized mercury.
KW - Coal-fired power station
KW - Mercury emission
KW - Mercury speciation
KW - Mercury testing method
KW - Wet FGD
UR - https://www.scopus.com/pages/publications/77949513499
U2 - 10.1109/ICEET.2009.544
DO - 10.1109/ICEET.2009.544
M3 - Conference contribution
AN - SCOPUS:77949513499
SN - 9780769538198
T3 - 2009 International Conference on Energy and Environment Technology, ICEET 2009
SP - 332
EP - 335
BT - 2009 International Conference on Energy and Environment Technology, ICEET 2009
T2 - 2009 International Conference on Energy and Environment Technology, ICEET 2009
Y2 - 16 October 2009 through 18 October 2009
ER -